[Siegfried]

Here's a variation on the pheasant plucker one:

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I'm a pheasant plucker.
I pluck mother pheasants.
I'm the pleasantest mother pheasant plucker
that ever plucked a mother pheasant.

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After you get the hang of it, it's great to challenge your drunken buddies to try repeating it after you!

[N. Theknow]

Well, aren't you a smart feller?

[yournamehere]

That brought back a few chuckles remembering one that I had memorized and would try to get others to repeat:

I'm not a fig plucker
or a fig pluckers son,
but I'll pluck figs
until the fig plucker comes